diff --git a/frappe/www/printview.py b/frappe/www/printview.py
index ff2b048305..f31c8af6e0 100644
--- a/frappe/www/printview.py
+++ b/frappe/www/printview.py
@@ -236,6 +236,12 @@ def get_rendered_template(
 					{letter_head.header_script}
 				</script>
 			"""
+		if letter_head.custom_css:
+			letter_head.content += f"""
+			<style>
+				{letter_head.custom_css}
+			</style>
+			"""
 
 	if letter_head.footer:
 		letter_head.footer = frappe.utils.jinja.render_template(letter_head.footer, {"doc": doc.as_dict()})
@@ -427,7 +433,7 @@ def get_letter_head(doc: "Document", no_letterhead: bool, letterhead: str | None
 		return frappe.db.get_value(
 			"Letter Head",
 			letterhead_name,
-			["content", "footer", "header_script", "footer_script"],
+			["content", "footer", "header_script", "footer_script", "custom_css"],
 			as_dict=True,
 		)
 	else:
@@ -435,7 +441,7 @@ def get_letter_head(doc: "Document", no_letterhead: bool, letterhead: str | None
 			frappe.db.get_value(
 				"Letter Head",
 				{"is_default": 1},
-				["content", "footer", "header_script", "footer_script"],
+				["content", "footer", "header_script", "footer_script", "custom_css"],
 				as_dict=True,
 			)
 			or {}